The "175G Series" shift knob from Sickspeed. Made from SOLID weapons grade 6061 aluminum. No set screws, these  knobs will not wobble or fall off. Design feels rock solid in your hand! These knobs are NOT painted. The color will NEVER rub off or lose its shine! Weighed in at 175g (6.2 oz) for increased positive shift. Made in the USA. Sickspeed is proud to be America based, and American owned!! Installs in seconds!! Don't forget to check out our other listings for parts and accessories to suit your ride. We are always expanding so keep an eye out for more supreme quality products from Sickspeed. NOTE: This fits AUTOMATIC '68-'82 Corvettes. If you have a different year vehicle or a MANUAL transmission, please check our other listings The included extension hooks directly up to your existing shifter and allows the use of a standard threaded knob insuring that your knob will always feel rock solid. Purchase includes a die-cut vinyl decal: Check out the manufacturer's website for more info and pics.